Question

what will be the number os S-atoms in 2.56 gm of s8​

Answer 1

Molecular weight of Sulphur = 32 g/mol
Moles of Sulphur in 2.56g of S8 = 2.56/32
= 0.08 mol
#of S atoms in 0.08 mol of S8
= 0.08 mol x 6.022 x 10^23 /mol

=0.48176 x 10^23.